The use of Artificial Intelligence (AI) has not just been limited to tech fields, but they have also changed how Nigerian school teach and learn. Educators have been investigating on possible ways that knowledge acquisition can help students become more critically minded of the problems that surround them. The present study examined the impact of AI-Powered learning tools on developing critical thinking skills among undergraduates in a period of insecurity in Nigeria. The study employed a descriptive survey research design. The population of the study composed of 420 undergraduate students in the Department of Science Education, Akwa Ibom State University. The study utilized an accidental sampling technique to recruit 126 level 300 and 400 students. The Critical Thinking Skills Assessment Questionnaire (CTSAQ) and the Specific Security Challenges Questionnaire (SSCQ) were used as the instruments for data collection. The reliability of the instrument was determined using Cronbach alpha and the reliability index obtained were 0.75 and 0.88 for CTSAQ and SSCQ respectively. Mean, standard deviation, and one-sample t-tests statistics were used to analyze the gathered data. The findings show a significant improvement in critical thinking skills and a positive perception in the usefulness of AI-Powered tools, with students showing more interest in security-related subjects. Students expressed a favorable attitude toward AI-Powered learning tools since they foster the growth of their security-related critical thinking skills. Additionally, AI-Powered learning tools are seen by Nigerian undergraduates as useful tools for fostering critical thinking skills that could help tp tackle security challenges. Hence, the study concluded that undergraduates’ critical thinking and attitudes toward security issues are positively impacted by AI-Powered learning tools. It was therefore recommended that Nigerian universities should integrate AI-Powered learning tools such as tutoring systems, academic chat assistants, chatbots, and interactive simulations into everyday teaching and the curriculum.